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Home >> Pontiac >> 2007 >> Solstice Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 177 (Cellular Systems, Entertainment Systems & Navigation Systems) >> Diagnostic Information and Procedures >> DTC B1025, B1035, B1045, or B1055 >> Circuit/System Testing >> With Amplifier

With Amplifier

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X3 harness connector at the audio amplifier.
  2. Radio ON, test for 5.0-7.5V between the appropriate signal circuit terminal listed below and ground.
    • Left front low level audio signal (+) terminal 12
    • Left front low level audio signal (-) terminal 10
    • Right front low level audio signal (+) terminal 9
    • Right front low level audio signal (-) terminal 11
    • Left rear low level audio signal (+) terminal 3
    • Left rear low level audio signal (-) terminal 1
    • Right rear low level audio signal (+) terminal 4
    • Right rear low level audio signal (-) terminal 2
    • If less than the specified range, test the appropriate signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
    • If greater than the specified range, test the appropriate signal circuit for a short to voltage. If the circuit tests normal, replace the radio.
  3. If all circuits test normal, replace the audio amplifier.
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